Street-cleaning machine.



' (1,. B. ROBERTSON. STREET CLEANING MACHINE.

APPLICATION HLED NOV. 4. 1915.

Inventor,

I 'v Atiq rneys,

vex.

Patefited 001311916. j

' Witnesse c. B. ROBERTSON.- STREET CLEANING MACHINE. APPLICATION FH. EDNOV- 4, 1915- 1,203,130. Patented Oct. 31, 1916.

3 SHEETS-SHEET 2.

C. B. ROBERTSON.

EEEEEEEEEEEEE G MACHINE.

APPLICATION FILED NOV. 4. 1915.

1,203,130. I Patented 0ct.31,1916. v r I v 3 EEEEEEEEEEEE 3.

CHARLES nnonnn'rsolr; ,QE COLUMBUS, OHIO.

smnnr-cLmnmeMAcHmn.

To all wkomz'tmay concern:

Be it known that I, CHARLES B." RepealsoN, a citizen of the UnitedStates, residing at Columbus, in the countyof Franklin and State ofQhio,-have invented a new and useful Street CleaningMachine, of whichthe,

following is a specification p The device forming the subjectmatter ofthis application is a street cleaning machine, and one object of thepresent invention is to provide novel means for blowing air to the rearof rotating brushesand foriapplying a suction in front of said brushesthere by'to effect a thorough cleaning of the surface: over which thebrushes'pass.

Another object ofthe' invention is to provide novel means for supporting:the brush casings. v v

A further ohject of the invention is to improve the suction anddischarge mechanism.

The invention aims to improve thecollccting rece 'itacle and partsadjacent thereto.

It is within the province of the disclosure to improve generally and toenhance the tility of devices of that type to which the presentinvention appertains.

With the above and othenob iects lnvlew which will appear asthedescription proceeds, the invention resides in'the combinaand claimed,it being,

tion and arrangement of parts andiin the details of. constructionhereinafter'described understood, that changes in the precise embodimentofthe inventionherein disclosed can be made within the scope olf jwhatisclaimed, without del miting from-the spirit of the, invention. .In theaccompanying drawing :-F1gure 1 showsthe inventionin side elevation,parts appearlng m section; Fig. 2 1s a horizontal section taken, in aplane ad acent the platform 'iortion of the vehicle; Fig. 3 is afragmcntal elevation showing one of the brushes; Fig. 4. IS a sectionalI brush casings; Fig. 5 isaside elevatlon of the brush casing; Fig. 6 1sa sectional detail illustrating one of the yleldable coupl ngs employedin various parts of the machine.

, In carrying out the present invention there is provided a vehicleembodying a platform and Mounted on the platform 1 is an engine toperatively connected 'by means of a belt '5 with the shaft!) of acombined suction and blower device 6 mounted on the platform '1.Communicating with the as- Specifi cstionpf Letters Patent.

Application filed November 4, 1915 Sam No. 59,633.

so that theseparts may 22 entering detail of one of the :1 supportedongmund wheels 2 Patented Oct. 31, 1916.

ingof the suction and blower device 6 is a discharge conduit 7 openingas'shown at v10 into one side of a separator-8 in the top of which islocated an open ended "flue 9. The

separator 8 embodies a tapered lower end 11 received in an invertedfunnel 12 disposed in. the top ing em 14 with the frame work of the mainvehicle,

be drawn alon together. is a screenedop'ening 17 whichavoids too great'apressure within the dust At its rear end, the dust receptacle l t may beprovided with a hingedly mounted clean out door '18;-

OFFICE of a dust receptacle lt'mounted on wheels 15, detachableconnections 16 beployed for uniting the dust receptacle In thetop of thedust receptac el t receptacle. I

The casing ofthe suction and. blower device 6 communicates with atransverse'mani-' f ld 19. having rearwairdly extended necks 20 unitedby brushcasings23 near to the 15 f swivel connections 21 with pipeslower forward portions thereof. Disposed upon the guides '24 receivingslides, 25 carrying bearings 26 in'which are rying brushes 28, theshafts 27 carrying 'ex* terna'l closure platesA t bridging thespacebetween the guides .24. v i 1 I Foot plates 43 are'mounted on the uppersides of the brush casings 28 are journaled shafts 27 car-- portions ofthe brush casings 23 and to the foot plates are'connected springs 33,then per ends of which are attached to vertical y' i adjustable rods 34tmo'vablein abutments 36 and provided with nuts 35 bearing against,

the. abutments,

the springs 33' constituting a means whereby the brush casings 23 may bepartially "supported yieldinglyf'The brush casings 23. are

with openings. Seohred to the brush cas -ings 23 and extended across theforward foot plates 43 on the brush casi gs 23.

Disposed transversely of the frame of the provided at tliieir lower endswith springs 42 connected at their lower ends with the brush casings .23and terminating adjacent mechanisms 38 on' the levers 37witlithesegnating inenlarged heads (51 extended downmanifold 45 having aforwardly extended above indicated, the brush casings are perinlet 45"in which operates afan secured mitted to have the necessary movements.

to and driven by the shaft 45) of the blower (i. It is to be observedthat the sprin s 33 and A. counter shaft 51 is jo-urnaled in brackets 42constitute a means for uphol ing the connected with the blower shaft 49by neans movement, and for I yieldable horizontal oi belts 50. Belts 48connect the counter movement.

brush shafts 2T. Projecting from the mani strips 30, rear strips; 31fandside strips 32,

i'old 45 are conduit-s 58 united by flexible, the said strips yieldeachindcpendently of p syviveleil joints 5!) of the sort hereinbefoicthe other to maintain substantially, the con-M I =-machine and supportedon hangers 46 is a plings 21 and 5 areemployed at the points Because theclosures at the shaft 51 with pulleys l7 on the ends of the lower endsof the casings comprise front a a described, with pipes (30 carried bythe tops tinuity of the closure, independently o'fthe 3 of the brushcasings 23, the pipes (30 termimovements of the casing. A

Having thus described the'invention, what \vardly around the forwardfaces of the is claimed is i 1. In a device of the class described, avei v the surface of the ground, the outlets of the hicle; a brushISiIIg, carried by the vehicle heads (31 being indicated at 6 and havingan opening inits bottom; means i i i The driving trains areasdollowsz-The for assembling the casing with the vehicles? sllu it 49of the suction device and blower 6 for yieldable up and down movement,and

is actuated from the engine 4=-by means of for yieldable horizontalmovement; a brush L the belt From the shaft 49 of the blower .journaledfor rotation in the ,casing; and a? I it and suction device (3, motionis transmitted closure carried by ,theicasing and located 1 L" hells 50.The fan is driven by the shaitj front and rear estrlpsjundfside strips,eachjf From the counter shaft 51 motion is of said stripsbeing'yieldable independently,

of the other to maintain substantially ther continuity of the closureindependently of T f f y N g to the counter shaft 51 by means of the=,about the openingptheelosure comprising l-fil. transmitted to the brushshafts 27 by means of the belts 4S.

in practical operation, as the structure is the movements. of thecasingu drawn forwardly, the several closure strips 2. vIn a; device ofthe, class described, a vei 30. 31 and 32 around the openings atthehicle a ,brush casingucarried thereby; a-g

lower ends of the brush casings 23 travelin brushjournaled in thecasing; a dust recep-f t'ont'aetwith the ground and thus substan-'tacle'carrledby the veh1cle;-a combmedsuc-p tially prevent a leakage ofair into the brush tion and blower mechanism on the Vehicle;

casings. Air under pressure is discharged a conduit leading'i iiromflthesuction and;

from the blower manifold 45 by means of blower mechanism tothereoeptacle; a. suc-ig' the heads 61 through the outlets 62 in the tionconduit Ieading irbm thesuction and) direction of the travel of thevehicle and to blower mechanismto thejcasingand having A the rear of thebrushes 28, the dust collected an. intake opcninglocated in front ofthe} and agitated by the brushes being drawn brush; a conduit themanifold 19, the dust passing thence receptacle andopening att blower(3, from which the dust is discharged producing means in thelastspecified con-y 7 a whirling motion is given to the dust blastproducing mea'nsiu and air, the dust passing downwardly and a. In adevice of means described, :1 vo

1053 communicating at one end T through the pipes 22 and the necks 20into with the atmospherepinde ndentlyof the i lii eotherendintofl i intothe casing of tne'suction device and the casmgto the rearofthe brushyablast-1 by the conduit 7 into the separatorv 8. As duit; an engine onthe: vehicle; andfmeans, the dust and air is projected intothe se'pa--fo r connecting the jenginelwith the bruslnf rator 8 through the outlet10 of the conduit the suctionand blowenmechan'ism and theigl,

the air passing upwardly out of the flue 9. hide; a combined suctionzandblower de The dust; passing downwardly, V I funnel-shaped end 11 of theseparator 8 and springs constitute a means for partiallythe-conduitdischarges"; aibrush casing-car supporting the brush casings23 yieldingly, it being possible at any time to raise and brush casing;

springs 42, the brush casings ments 39. .--second blower casing mountedon the ve;

Owing to the fact. that the flexible couhicle; a. conduit leading tramthewaecond ried by the vehicle; a brush journaled in the 1 I apipeleading from the for: lower the brush casings by manipulating theward portion of thex brush casing to the levers 37, motion beingimparted to the brush suction andblower device; a' counter shaft, icasings by way of the chains 41 'and the journaled on the vehicle; aconnection-bebeing held in tween the counter s'haftiand the shaft of theadjusted positions by engaging the latch suction and blower deviee;'aconnection be-- tween thewcountcr shaft and theibrush; a.

traverses the- -vice mounted on the vehicle and including a i shaft; aconduit leadingif romzthe suct on;

is deposited in the dust receptacle 14. The and blower device; areceptacleinto which 1 70 a on the machine frame and is operative'ybrush casings for yieldable up and down i l blower casing to the brushcasing and' discharging into the brush ca'sing behind'j the brush; and ablower cooperating with the second specified blower casing and Ihountedon the shaft of the suction and blower devlcc.

In testimony that I claim the foregoing as my own; I have-heretozilfixed my signature in the presence of two witnesses.

.CHARLES B. ROBERTSON.

Witnesses X JOHN F. s am, T. L. Lowl l.

